X-Git-Url: https://git.mdrn.pl/redakcja.git/blobdiff_plain/78b3d0dc3fc979d4c2ab507bf95d82b89e2792ad..826d67400c317836cd9dd02bb03b39a390e4514b:/project/static/js/editor.js

diff --git a/project/static/js/editor.js b/project/static/js/editor.js
index 11574373..6918f9e5 100644
--- a/project/static/js/editor.js
+++ b/project/static/js/editor.js
@@ -1,20 +1,22 @@
+var editor;
+var panel_hooks;
+
 function Hotkey(code) {
-    this.code = code
-    this.has_alt = ((code & 0x01 << 8) != 0)
-    this.has_ctrl = ((code & 0x01 << 9) != 0)
-    this.has_shift = ((code & 0x01 << 10) != 0)
-    this.character = String.fromCharCode(code & 0xff)
+    this.code = code;
+    this.has_alt = ((code & 0x01 << 8) !== 0);
+    this.has_ctrl = ((code & 0x01 << 9) !== 0);
+    this.has_shift = ((code & 0x01 << 10) !== 0);
+    this.character = String.fromCharCode(code & 0xff);
 }
 
-
 Hotkey.prototype.toString = function() {
-    mods = []
-    if(this.has_alt) mods.push('Alt')
-    if(this.has_ctrl) mods.push('Ctrl')
-    if(this.has_shift) mods.push('Shift')
-    mods.push('"'+this.character+'"')
-    return mods.join('+')
-}
+    var mods = [];
+    if(this.has_alt) mods.push('Alt');
+    if(this.has_ctrl) mods.push('Ctrl');
+    if(this.has_shift) mods.push('Shift');
+    mods.push('"'+this.character+'"');
+    return mods.join('+');
+};
 
 function Panel(panelWrap) {
     var self = this;
@@ -22,7 +24,7 @@ function Panel(panelWrap) {
     self.wrap = panelWrap;
     self.contentDiv = $('.panel-content', panelWrap);
     self.instanceId = Math.ceil(Math.random() * 1000000000);
-    $.log('new panel - wrap: ', self.wrap);
+    // $.log('new panel - wrap: ', self.wrap);
 	
     $(document).bind('panel:unload.' + self.instanceId,
         function(event, data) {
@@ -31,31 +33,38 @@ function Panel(panelWrap) {
 
     $(document).bind('panel:contentChanged', function(event, data) {
         $.log(self, ' got changed event from: ', data);
-        if(self != data)
+        if(self != data) {
             self.otherPanelChanged(event.target);
-        else
+        } else {
             self.markChanged();
-
+        }
         return false;
     });
 }
 
 Panel.prototype.callHook = function() {
-    var args = $.makeArray(arguments)
-    var hookName = args.splice(0,1)[0]
-    var noHookAction = args.splice(0,1)[0]
+    var args = $.makeArray(arguments);
+    var hookName = args.splice(0,1)[0];
+    var noHookAction = args.splice(0,1)[0];
     var result = false;
 
     $.log('calling hook: ', hookName, 'with args: ', args);
-    if(this.hooks && this.hooks[hookName])
+    if(this.hooks && this.hooks[hookName]) {
         result = this.hooks[hookName].apply(this, args);
-    else if (noHookAction instanceof Function)
+    } else if (noHookAction instanceof Function) {
         result = noHookAction(args);
+    }
     return result;
-}
+};
+
+Panel.prototype._endload = function () {
+    // this needs to be here, so we
+    this.connectToolbar();
+    this.callHook('toolbarResized');
+};  
 
 Panel.prototype.load = function (url) {
-    $.log('preparing xhr load: ', this.wrap);
+    // $.log('preparing xhr load: ', this.wrap);
     $(document).trigger('panel:unload', this);
     var self = this;
     self.current_url = url;
@@ -67,69 +76,68 @@ Panel.prototype.load = function (url) {
             panel_hooks = null;
             $(self.contentDiv).html(data);
             self.hooks = panel_hooks;
-            panel_hooks = null;
-            self.connectToolbar();
-            self.callHook('load');
-            self.callHook('toolbarResized');
+            panel_hooks = null;            
+            self.callHook('load');           
         },
         error: function(request, textStatus, errorThrown) {
             $.log('ajax', url, this.target, 'error:', textStatus, errorThrown);
-            $(self.contentDiv).html("<p>Wystapił błąd podczas wczytywania panelu.");
+            $(self.contentDiv).html("<p>Wystapił błąd podczas wczytywania panelu.</p>");
         }
     });
-}
+};
 
 Panel.prototype.unload = function(event, data) {
-    $.log('got unload signal', this, ' target: ', data);
-
-    if( data == this ) {
-        $.log('unloading', this);
+    // $.log('got unload signal', this, ' target: ', data);
+    if( data == this ) {        
         $(this.contentDiv).html('');
 
         // disconnect the toolbar
-        $('div.panel-toolbar span.panel-toolbar-extra', this.wrap).empty();
+        $('div.panel-toolbar span.panel-toolbar-extra', this.wrap).html(
+            '<span />');
         
         this.callHook('unload');
         this.hooks = null; // flush the hooks
         return false;
-    };
-}
+    }
+};
 
 Panel.prototype.refresh = function(event, data) {
     var self = this;
-    reload = function() {
+    var reload = function() {
         $.log('hard reload for panel ', self.current_url);
         self.load(self.current_url);
         return true;
-    }
+    };
 
-    if( this.callHook('refresh', reload) )
+    if( this.callHook('refresh', reload) ) {
         $('.change-notification', this.wrap).fadeOut();
-} 
+    }
+}; 
 
 Panel.prototype.otherPanelChanged = function(other) {
-    $.log('panel ', other, ' changed.');
-    if(!this.callHook('dirty'))
+    $.log('Panel ', this, ' is aware that ', other, ' changed.');
+    if(!this.callHook('dirty')) {
         $('.change-notification', this.wrap).fadeIn();
-}	
+    }
+};	
 
 Panel.prototype.markChanged = function () {
     this.wrap.addClass('changed');
-}
+};
 
 Panel.prototype.changed = function () {
     return this.wrap.hasClass('changed');
-}
+};
 
 Panel.prototype.unmarkChanged = function () {
     this.wrap.removeClass('changed');
-}
+};
 
 Panel.prototype.saveInfo = function() {
     var saveInfo = {};
     this.callHook('saveInfo', null, saveInfo);
     return saveInfo;
-}
+};
 
 Panel.prototype.connectToolbar = function()
 {
@@ -138,15 +146,13 @@ Panel.prototype.connectToolbar = function()
     
     // check if there is a one
     var toolbar = $("div.toolbar", this.contentDiv);
-    $.log('Connecting toolbar', toolbar);
-    if(toolbar.length == 0) return;
+    // $.log('Connecting toolbar', toolbar);
+    if(toolbar.length === 0) return;
 
     // move the extra
-    var extra_buttons = $('span.panel-toolbar-extra', toolbar);
-    var placeholder = $('div.panel-toolbar span.panel-toolbar-extra', this.wrap);
-    placeholder.replaceWith(extra_buttons);
-
-    var action_buttons = $('button', extra_buttons);
+    var extra_buttons = $('span.panel-toolbar-extra button', toolbar);
+    var placeholder = $('div.panel-toolbar span.panel-toolbar-extra > span', this.wrap);
+    placeholder.replaceWith(extra_buttons);       
 
     // connect group-switch buttons
     var group_buttons = $('*.toolbar-tabs-container button', toolbar);
@@ -165,10 +171,11 @@ Panel.prototype.connectToolbar = function()
                 active.removeClass('active');                
                 group.addClass('active');
                 $(".toolbar-button-groups-container p", toolbar).each(function() {
-                    if ( $(this).attr('ui:group') != group_name) 
+                    if ( $(this).attr('ui:group') != group_name) {
                         $(this).hide();
-                    else
+                    } else {
                         $(this).show();
+                    }
                 });
                 self.callHook('toolbarResized');
             }
@@ -176,7 +183,7 @@ Panel.prototype.connectToolbar = function()
     });
 
     // connect action buttons
-    var allbuttons = $.makeArray(action_buttons)
+    var allbuttons = $.makeArray(extra_buttons);
     $.merge(allbuttons,
         $.makeArray($('*.toolbar-button-groups-container button', toolbar)) );
         
@@ -188,9 +195,9 @@ Panel.prototype.connectToolbar = function()
         try {
             var params = $.evalJSON(button.attr('ui:action-params'));
         } catch(object) {
-           $.log('JSON exception in ', button, ': ', object);
-           button.attr('disabled', 'disabled');
-           return;
+            $.log('JSON exception in ', button, ': ', object);
+            button.attr('disabled', 'disabled');
+            return;
         }
 
         var callback = function() {
@@ -203,7 +210,7 @@ Panel.prototype.connectToolbar = function()
         // connect hotkey
         if(hk) {
             self.hotkeys[hk.code] = callback;
-             $.log('hotkey', hk);
+        // $.log('hotkey', hk);
         }
         
         // tooltip
@@ -225,35 +232,36 @@ Panel.prototype.connectToolbar = function()
             });
         }
     });
-}
+};
 
 Panel.prototype.hotkeyPressed = function(event)
 {
-    code = event.keyCode;
+    var code = event.keyCode;
     if(event.altKey) code = code | 0x100;
     if(event.ctrlKey) code = code | 0x200;
     if(event.shiftKey) code = code | 0x400;
 
     var callback = this.hotkeys[code];
     if(callback) callback();
-}
+};
 
 Panel.prototype.isHotkey = function(event) {
-    code = event.keyCode;
+    var code = event.keyCode;
     if(event.altKey) code = code | 0x100;
     if(event.ctrlKey) code = code | 0x200;
     if(event.shiftKey) code = code | 0x400;
 
-    if(this.hotkeys[code] != null)
+    $.log(event.character, this.hotkeys[code]);
+
+    if(this.hotkeys[code]) {
         return true;
-        
+    }
     return false;
-}
+};
 
-//
 Panel.prototype.fireEvent = function(name) {
     $(document).trigger('panel:'+name, this);
-}
+};
 
 function Editor()
 {
@@ -263,60 +271,6 @@ function Editor()
     this.scriplets = {};
 }
 
-Editor.prototype.setupUI = function() {
-    // set up the UI visually and attach callbacks
-    var self = this;
-   
-    self.rootDiv.makeHorizPanel({}); // TODO: this probably doesn't belong into jQuery
-    // self.rootcDiv.css('top', ($('#header').outerHeight() ) + 'px');
-    
-    $('#panels > *.panel-wrap').each(function() {
-        var panelWrap = $(this);
-        $.log('wrap: ', panelWrap);
-        var panel = new Panel(panelWrap);
-        panelWrap.data('ctrl', panel); // attach controllers to wraps
-        panel.load($('.panel-toolbar select', panelWrap).val());
-        
-        $('.panel-toolbar select', panelWrap).change(function() {
-            var url = $(this).val();
-            self.savePanelOptions();
-            panelWrap.data('ctrl').load(url);
-        });
-
-        $('.panel-toolbar button.refresh-button', panelWrap).click(
-            function() { 
-                panel.refresh();
-            } );
-    });
-
-    $(document).bind('panel:contentChanged', function() {
-        self.onContentChanged.apply(self, arguments)
-    });
-    
-    $('#toolbar-button-save').click( function (event, data) { 
-        self.saveToBranch();
-    } );
-
-    $('#toolbar-button-update').click( function (event, data) {
-        if (self.updateUserBranch()) {
-            // commit/update can be called only after proper, save
-            // this means all panels are clean, and will get refreshed
-             // do this only, when there are any changes to local branch
-            self.refreshPanels();
-        }
-    } );
-
-    $('#toolbar-button-commit').click( function (event, data) { 
-        self.sendPullRequest();
-        event.preventDefault();
-        event.stopPropagation();
-        return false;
-    } );
-    self.rootDiv.bind('stopResize', function() { 
-        self.savePanelOptions()
-    });
-}
-
 Editor.prototype.loadConfig = function() {
     // Load options from cookie
     var defaultOptions = {
@@ -331,8 +285,9 @@ Editor.prototype.loadConfig = function() {
             ratio: 0.5
         }
         ],
+        recentFiles: [],
         lastUpdate: 0
-    }
+    };
     
     try {
         var cookie = $.cookie('options');
@@ -343,37 +298,53 @@ Editor.prototype.loadConfig = function() {
     } catch (e) {    
         this.options = defaultOptions;
     }
+    
+    this.fileOptions = this.options;
+    var self = this;
+
+    if(!this.options.recentFiles)
+        this.options.recentFiles = [];
+
+    $.each(this.options.recentFiles, function(index) {
+        if (fileId == self.options.recentFiles[index].fileId) {
+            $.log('Found options for', fileId);
+            self.fileOptions = self.options.recentFiles[index];
+        }
+    });
+    
     $.log(this.options);
+    $.log('fileOptions', this.fileOptions);
     
     this.loadPanelOptions();
-}
+    this.savePanelOptions();
+};
 
 Editor.prototype.loadPanelOptions = function() {
-    var self = this;
-    var totalWidth = 0;
-    
-    $('.panel-wrap', self.rootDiv).each(function(index) {
-        var panelWidth = self.options.panels[index].ratio * self.rootDiv.width();
-        if ($(this).hasClass('last-panel')) {
-            $(this).css({
-                left: totalWidth,
-                right: 0
-            });
-        } else {
-            $(this).css({
-                left: totalWidth,
-                width: panelWidth
-            });
-            totalWidth += panelWidth;               
-        }
-        $.log('panel:', this, $(this).css('left'));
-        $('.panel-toolbar option', this).each(function() {
-            if ($(this).attr('p:panel-name') == self.options.panels[index].name) {
-                $(this).parent('select').val($(this).attr('value'));
-            }
-        });
-    });   
-}
+    // var self = this;
+    // var totalWidth = 0;
+    // 
+    // $('.panel-wrap', self.rootDiv).each(function(index) {
+    //     var panelWidth = self.fileOptions.panels[index].ratio * self.rootDiv.width();
+    //     if ($(this).hasClass('last-panel')) {
+    //         $(this).css({
+    //             left: totalWidth,
+    //             right: 0
+    //         });
+    //     } else {
+    //         $(this).css({
+    //             left: totalWidth,
+    //             width: panelWidth
+    //         });
+    //         totalWidth += panelWidth;               
+    //     }
+    //     $.log('panel:', this, $(this).css('left'));
+    //     $('.panel-toolbar option', this).each(function() {
+    //         if ($(this).attr('p:panel-name') == self.fileOptions.panels[index].name) {
+    //             $(this).parent('select').val($(this).attr('value'));
+    //         }
+    //     });
+    // });   
+};
 
 Editor.prototype.savePanelOptions = function() {
     var self = this;
@@ -382,16 +353,28 @@ Editor.prototype.savePanelOptions = function() {
         panels.push({
             name: $('.panel-toolbar option:selected', this).attr('p:panel-name'),
             ratio: $(this).width() / self.rootDiv.width()
-        })
+        });
     });
     self.options.panels = panels;
-    self.options.lastUpdate = (new Date()).getTime() / 1000;
-    $.log($.toJSON(self.options));
+
+    // Dodaj obecnie oglądany plik do listy recentFiles
+    var recentFiles = [{fileId: fileId, panels: panels}];
+    var count = 1;
+    $.each(self.options.recentFiles, function(index) {
+        if (count < 5 && fileId != self.options.recentFiles[index].fileId) {
+            recentFiles.push(self.options.recentFiles[index]);
+            count++;
+        }
+    });
+    self.options.recentFiles = recentFiles;
+    
+    self.options.lastUpdate = new Date().getTime() / 1000;
+    $.log($.toJSON(self.options));    
     $.cookie('options', $.toJSON(self.options), {
         expires: 7,
         path: '/'
     });
-}
+};
 
 Editor.prototype.saveToBranch = function(msg) 
 {
@@ -399,9 +382,9 @@ Editor.prototype.saveToBranch = function(msg)
     var self = this;
     $.log('Saving to local branch - panel:', changed_panel);
 
-    if(!msg) msg = "Zapis z edytora platformy.";
+    if(!msg) msg = "Szybki zapis z edytora platformy.";
 
-    if( changed_panel.length == 0) {
+    if( changed_panel.length === 0) {
         $.log('Nothing to save.');
         return true; /* no changes */
     }
@@ -411,17 +394,18 @@ Editor.prototype.saveToBranch = function(msg)
         return false;
     }
 
-    saveInfo = changed_panel.data('ctrl').saveInfo();
-    var postData = ''
+    var saveInfo = changed_panel.data('ctrl').saveInfo();
+    var postData = '';
     
-    if(saveInfo.postData instanceof Object)
+    if (saveInfo.postData instanceof Object) {
         postData = $.param(saveInfo.postData);
-    else
+    } else {
         postData = saveInfo.postData;
-
+    }
+    
     postData += '&' + $.param({
         'commit_message': msg
-    })
+    });
 
     self.showPopup('save-waiting', '', -1);
 
@@ -434,16 +418,16 @@ Editor.prototype.saveToBranch = function(msg)
             }
             else {
                 self.refreshPanels();
-                $('#toolbar-button-save').attr('disabled', 'disabled');
-                $('#toolbar-button-commit').removeAttr('disabled');
-                $('#toolbar-button-update').removeAttr('disabled');
-                if(self.autosaveTimer)
-                    clearTimeout(self.autosaveTimer);
 
-                if (data.warnings == null)
+
+                if(self.autosaveTimer) {
+                    clearTimeout(self.autosaveTimer);
+                }
+                if (data.warnings === null || data.warning === undefined) {
                     self.showPopup('save-successful');
-                else
+                } else {
                     self.showPopup('save-warn', data.warnings[0]);
+                }
             }
             
             self.advancePopupQueue();
@@ -465,14 +449,13 @@ Editor.prototype.autoSave = function()
     // first check if there is anything to save
     $.log('Autosave');
     this.saveToBranch("Automatyczny zapis z edytora platformy.");
-}
+};
 
 Editor.prototype.onContentChanged = function(event, data) {
     var self = this;
 
-    $('#toolbar-button-save').removeAttr('disabled');
-    $('#toolbar-button-commit').attr('disabled', 'disabled');
-    $('#toolbar-button-update').attr('disabled', 'disabled');
+    $('button.provides-save').removeAttr('disabled');
+    $('button.requires-save').attr('disabled', 'disabled');
     
     if(this.autosaveTimer) return;
     this.autosaveTimer = setTimeout( function() {
@@ -480,144 +463,106 @@ Editor.prototype.onContentChanged = function(event, data) {
     }, 300000 );
 };
 
-Editor.prototype.refreshPanels = function() {
-    var self = this;
-
-    self.allPanels().each(function() {
-        var panel = $(this).data('ctrl');
-        $.log('Refreshing: ', this, panel);
-        if ( panel.changed() )
-            panel.unmarkChanged();
-        else
-            panel.refresh();
-    });
-};		
-
-
 Editor.prototype.updateUserBranch = function() {
-    if( $('.panel-wrap.changed').length != 0)
+    if($('.panel-wrap.changed').length !== 0) {
         alert("There are unsaved changes - can't update.");
+    }
 
     var self = this;
     $.ajax({
         url: $('#toolbar-button-update').attr('ui:ajax-action'),
-	dataType: 'json',
-	success: function(data, textStatus) {
-                switch(data.result) {
-                    case 'done':
-                        self.showPopup('generic-yes', 'Plik uaktualniony.');
-                        self.refreshPanels()
-                        break;
-                    case 'nothing-to-do':
-                        self.showPopup('generic-info', 'Brak zmian do uaktualnienia.');
-                        break;
-                    default:
-                        self.showPopup('generic-error', data.errors && data.errors[0]);
-                }
-	},
-	error: function(rq, tstat, err) {
-		self.showPopup('generic-error', 'Błąd serwera: ' + err);
-	},
-	type: 'POST',
-	data: {}
+        dataType: 'json',
+        success: function(data, textStatus) {
+            switch(data.result) {
+                case 'done':
+                    self.showPopup('generic-yes', 'Plik uaktualniony.');
+                    self.refreshPanels();
+                    break;
+                case 'nothing-to-do':
+                    self.showPopup('generic-info', 'Brak zmian do uaktualnienia.');
+                    break;
+                default:
+                    self.showPopup('generic-error', data.errors && data.errors[0]);
+            }
+        },
+        error: function(rq, tstat, err) {
+            self.showPopup('generic-error', 'Błąd serwera: ' + err);
+        },
+        type: 'POST',
+        data: {}
     });
-}
+};
 
-Editor.prototype.sendPullRequest = function () {
-    if( $('.panel-wrap.changed').length != 0)        
+Editor.prototype.sendMergeRequest = function (message) {
+    if( $('.panel-wrap.changed').length !== 0) {
         alert("There are unsaved changes - can't commit.");
+    }
 
-    var self =  this;
-
-    /* this.showPopup('not-implemented'); */
-
-    $.log('URL !: ', $('#toolbar-commit-form').attr('action'));
-    
+    var self =  this;    
+        
     $.ajax({        
-        url: $('#toolbar-commit-form').attr('action'),
-	dataType: 'json',
-	success: function(data, textStatus) {
-                switch(data.result) {
-                    case 'done':
-                        self.showPopup('generic-yes', 'Łączenie zmian powiodło się.');
-
-                        if(data.localmodified)
-                            self.refreshPanels()
+        url: $('#commit-dialog form').attr('action'),
+        dataType: 'json',
+        success: function(data, textStatus) {
+            switch(data.result) {
+                case 'done':
+                    self.showPopup('generic-yes', 'Łączenie zmian powiodło się.');
+
+                    if(data.localmodified) {
+                        self.refreshPanels();
+                    }
                         
-                        break;
-                    case 'nothing-to-do':
-                        self.showPopup('generic-info', 'Brak zmian do połaczenia.');
-                        break;
-                    default:
-                        self.showPopup('generic-error', data.errors && data.errors[0]);
-                }
-	},
-	error: function(rq, tstat, err) {
-		self.showPopup('generic-error', 'Błąd serwera: ' + err);
-	},
-	type: 'POST',
-	data: {'message': $('#toolbar-commit-message').val() }
+                    break;
+                case 'nothing-to-do':
+                    self.showPopup('generic-info', 'Brak zmian do połaczenia.');
+                    break;
+                default:
+                    self.showPopup('generic-error', data.errors && data.errors[0]);
+            }
+        },
+        error: function(rq, tstat, err) {
+            self.showPopup('generic-error', 'Błąd serwera: ' + err);
+        },
+        type: 'POST',
+        data: {
+            'message': message
+        }
     }); 
-}
+};
 
-Editor.prototype.showPopup = function(name, text, timeout)
+Editor.prototype.postSplitRequest = function(s, f)
 {
-    timeout = timeout || 4000;
-    var self = this;
-    self.popupQueue.push( [name, text, timeout] )
-
-    if( self.popupQueue.length > 1) 
-        return;
-
-    var box = $('#message-box > #' + name);
-    $('*.data', box).html(text || '');
-    box.fadeIn(100);
- 
-    if(timeout > 0)
-        setTimeout( $.fbind(self, self.advancePopupQueue), timeout);
+    $.ajax({
+        url: $('#split-dialog form').attr('action'),
+        dataType: 'html',
+        success: s,
+        error: f,
+        type: 'POST',
+        data: $('#split-dialog form').serialize()
+    });
 };
 
-Editor.prototype.advancePopupQueue = function() {
-    var self = this;
-    var elem = this.popupQueue.shift();
-    if(elem) {
-        var box = $('#message-box > #' + elem[0]);
-
-        box.fadeOut(100, function()
-        {
-            $('*.data', box).html('');
-
-            if( self.popupQueue.length > 0) {
-                var ibox = $('#message-box > #' + self.popupQueue[0][0]);
-                $('*.data', ibox).html(self.popupQueue[0][1] || '');
-                ibox.fadeIn(100);
-                if(self.popupQueue[0][2] > 0)
-                    setTimeout( $.fbind(self, self.advancePopupQueue), self.popupQueue[0][2]);
-            }
-        });
-    }
-};
 
 Editor.prototype.allPanels = function() {
     return $('#' + this.rootDiv.attr('id') +' > *.panel-wrap', this.rootDiv.parent());
-}
-
+};
 
 Editor.prototype.registerScriptlet = function(scriptlet_id, scriptlet_func)
 {
     // I briefly assume, that it's verified not to break the world on SS
-    if (!this[scriptlet_id])
+    if (!this[scriptlet_id]) {
         this[scriptlet_id] = scriptlet_func;
-}
+    }
+};
 
 Editor.prototype.callScriptlet = function(scriptlet_id, panel, params) {
-    var func = this[scriptlet_id]
-    if(!func)
+    var func = this[scriptlet_id];
+    if(!func) {
         throw 'No scriptlet named "' + scriptlet_id + '" found.';
-
+    }
     return func(this, panel, params);
-}
-  
+};
+
 $(function() {
     $.fbind = function (self, func) {
         return function() {